The following day is Apple's event. Rumors of a redesigned iPad, a closer look at OS X Mavericks system and a better look at the Mac Pro have investors and consumers on edge.

AT&T will release on Oct. 23. "It will be interesting to see if Apple's launch of iPhone 5S and 5C will have a significant impact on earnings," said Jonathan Heit, president and head of the global technology practice for public relations firm Allison Partners.

Two other big tech earnings releases will come from Amazon and Microsoft on Oct. 24.